S-94361A368 1/2"-20 Shoulder Screws
Shoulder Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Exceptional load-bearing capacity with 140,000 psi tensile strength for reliable performance in high-stress applications.
- Superior corrosion resistance provided by the black oxide finish, extending service life in harsh industrial environments.
- Precise thread engagement ensured by Class 3A thread fit, minimizing the risk of loosening under vibration.
- Enhanced grip and torque application from the knurled socket head and 5/16" hex drive, allowing for secure installation.
- Accurate alignment and spacing due to the 5/8" shoulder diameter with tight tolerances, ideal for pivot points and rotating assemblies.
- High durability from alloy steel construction and Rockwell C32 hardness, resisting wear and deformation.
- Compliance with environmental standards including RoHS 3 and REACH, ensuring safe use in regulated industries.
Professional Applications & Engineering Value
This alloy steel shoulder screw is engineered to address critical challenges in mechanical assemblies requiring precise alignment and high strength. The 1/2"-20 UNF fine thread with Class 3A fit ensures secure fastening in applications subject to vibration, such as machinery, automotive components, and industrial equipment. The black oxide finish enhances corrosion resistance, making it suitable for environments exposed to moisture or chemicals. The 5/8" shoulder diameter provides a stable bearing surface for rotating parts, reducing wear and maintaining accuracy. Ideal for use in pivots, linkages, and precision instruments, this screw offers reliable performance, backed by high tensile strength and compliance with industry standards, ensuring long-term durability and safety in demanding B2B settings.
Specification Summary & Compliance
This shoulder screw features precise dimensions, including a shoulder diameter tolerance of -0.004" to -0.002" and length tolerance of -0.005" to 0.005", ensuring consistent fit. It adheres to UNF thread standards with a Class 3A thread fit for high precision. The product is manufactured to meet RoHS 3 (2015/863/EU) compliance with exemption 6(a) for lead in steel and is REACH (EC 1907/2006) compliant, supporting use in regulated industries without environmental concerns.
